Our service. 1. Any queries will be answered within 24 hours. 2. Professional manufacturer, strong R & D team support. 3.OEM / ODM available, we can customize according to customer requirements. 4. Due to transportation restrictions, the battery is not in the package. you should buy your own AA battery. 5. We are a factory from China. please don't worry about the quality and service of our products. 6. If you have any questions about products and logistics, you can email us and we will reply as soon as possible. 7. After-sales service: 1) all products are subject to strict factory quality inspection before packaging. 2) all the products have been packed in our factory, and the second package is delivered by express delivery before shipment. 3) if there are any problems during operation or installation, please contact us freely and we will solve them with professional guidance. 8. Thank you for your trust and cooperation! Why choose us? 1) manufacturer directly, all in stock, as soon as two hours delivery. 2) The product series is complete, covering high-end, middle-end, low-end industrial remote control. 3) Strong R & D capability and a number of core technologies. 4) Accept personalized custom remote controller to meet the special functions of different devices. 5) The second best quality manufacturer of the same kind of industrial remote control in China. FAQ 1. Q: What is your minimum order? A: thank you for your question. We can accept sample orders for trial orders. 2. Q: Is there a warranty? . A: all our branded products have a 12-month warranty period. we provide 24-hour after-sales service and technical support. if you find any problems during installation, please feel free to contact us. 3. Q: Will you provide after-sales service? A: of course. 1) all products are subject to strict factory quality inspection before packaging. . 2) all the products are packed in our factory, and the second package is delivered by express delivery before shipment. . . 3) if there are any problems during operation or installation, please contact us freely and we will solve them with professional guidance. 4. Q: What certificates are approved for your product? A: we have CE,FCC,ISO9001. 5. Q: Can you customize it to my needs? A: you can send me inquiries according to your needs. we can customize them with technical engineers. 6. Q: Is your price the lowest? A: do you mind the quality? The quality of our supply is value for money, inferior products will waste and affect the work process, why not choose a medium price to work well? 7. Q: Is the product 100% assembled? A: yes, all the products are 100% assembled.